import 'dart:convert';

import 'package:flutter_secure_storage/flutter_secure_storage.dart';
import '../../../../core/errors/exceptions.dart';
import '../../../../core/utils/constants.dart';
import '../models/token_model.dart';

abstract class LoginLocalDataSource {
  Future<TokenModel> getToken();
  Future<void> saveToken(TokenModel tokenModel);
}

class LoginLocalDataSourceImpl implements LoginLocalDataSource {
  final FlutterSecureStorage storage;

  LoginLocalDataSourceImpl({required this.storage});

  @override
  Future<void> saveToken(TokenModel tokenModel) async {
    return await storage.write(
        key: storageDefaultAuthToken, value: jsonEncode(tokenModel));
  }

  @override
  Future<TokenModel> getToken() async {
    String? jsonStr = await storage.read(key: storageDefaultAuthToken);
    if (jsonStr == null) {
      throw CacheException();
    }
    return TokenModel.fromJson(jsonDecode(jsonStr));
  }
}